EP0135789A2 - High-voltage isolating switch, in particular a pantograph isolating switch able to make or break currents - Google Patents

High-voltage isolating switch, in particular a pantograph isolating switch able to make or break currents Download PDF

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Publication number
EP0135789A2
EP0135789A2 EP84109850A EP84109850A EP0135789A2 EP 0135789 A2 EP0135789 A2 EP 0135789A2 EP 84109850 A EP84109850 A EP 84109850A EP 84109850 A EP84109850 A EP 84109850A EP 0135789 A2 EP0135789 A2 EP 0135789A2
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EP
European Patent Office
Prior art keywords
contact
isolating switch
voltage
piece
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84109850A
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German (de)
French (fr)
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EP0135789A3 (en
EP0135789B1 (en
Inventor
Wolfgang Dipl.-Ing. Eberhardt
Kurt Freitag
Dietrich Dipl.-Ing. Hoffmann
Erwin Rohde
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Licentia Patent Verwaltungs GmbH
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Licentia Patent Verwaltungs GmbH
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Priority to AT84109850T priority Critical patent/ATE44422T1/en
Publication of EP0135789A2 publication Critical patent/EP0135789A2/en
Publication of EP0135789A3 publication Critical patent/EP0135789A3/en
Application granted granted Critical
Publication of EP0135789B1 publication Critical patent/EP0135789B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/34—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact adapted to engage an overhead transmission line, e.g. for branching
    • H01H31/36—Contact moved by pantograph
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • H01H33/126—Load break switches comprising a separate circuit breaker being operated by the distal end of a sectionalising contact arm

Definitions

  • the invention relates to a high-voltage disconnector according to the features of the preamble of claim 1.
  • the invention is therefore based on the object of specifying a device on high-voltage disconnectors of the type mentioned at the outset which, when switching commutating currents, reliably avoids burnout marks on the main contacts.
  • the second problem which arises when the isolator is switched on due to the slow ( ⁇ creeping '') switching on of the contacts of the second contact device, can be solved by installing a further contact device arranged parallel to this contact device, which is just before touching of the contacts of the second switching device switches on the circuit and thus relieves of the risk of scorching.
  • This first contact device is designed in such a way that, even with slow movement, it quickly comes from the state of the first contact with the contact load zero to the state of full current carrying capacity with a corresponding contact load.
  • the switching contacts 8a, 8b which can be single or double, are closed against the spring force in the switching device accommodated under a hood 9 before the main contacts 3a, 3b and 4 of the disconnector touch.
  • the spring uses a lever system 11 with an insulated pivot bearing 10 to ensure that the contact brackets follow the moving main contact 3a, 3b of the scissors and thereby the contact separation in the switching device with the subsequent arc extinguishing in the extinguishing tube 12 bring about.
  • FIG. 3 shows a switching device in which the main contacts (not shown) conduct the current when the disconnector is in the switched on position, and the likewise closed contacts of a second contact device 13, 14 and a first contact device 15, 16 are electrically parallel to the main contact contacts .
  • the disconnector When the disconnector is opened after the main contacts mentioned have separated, the current initially shifts to the still closed first contact device with the elastic contact fingers 15 and the movable contact piece 16. After a short stroke, the first contact device also disconnects (FIG. 3a) and the current to be switched off now only flows via the contact pieces 13, 14 of the second contact device, namely via the tear-off pin 13 firmly connected to the contact piece 16 and that in the housing 17th axially movably mounted contact 14.
  • the circuit is closed by the first contact device, after the contact fingers 15 slide over a conical run-up slope 25 made of insulating material in the course of the row switching movement, whereby they receive the pretension required for the required contact load, and finally in contact with the contact path of the contact piece 16 arrive (Fig. 3). Only after this contact has been made does the abrasion pin 13 lying inside the extinguishing tube 23 come into contact with the contact 14, so that no welding can occur here.
  • An electrically high-quality plastic with a low coefficient of friction such as e.g. an acetal resin can be used.
  • a copper alloy with good erosion resistance can be used as the contact surface for the contact piece 16.

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  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

1. High-voltage isolating switch with a) movable main contact members (3a, 3b) arranged at the ends of a scissors (2) movable in vertical direction, b) a main contact member firmly mounted as countercontact member (4) at the conductor cable (5) of the high-voltage line, c) a preliminary contact system, which is arranged at the countercontact member (4) and which during switching-on closes before the main contact members (3a, 3b, 4) and during switching-off opens after the main contact members (3a, 3b, 4), d) an actuating equipment for the preliminary contact system with two contact collectors (6a, 6b), which are constructed as levers (11, 11') which are crossed in the region of their fastening points (10) at the countercontact (4) and pivotable one towards the other in the manner of pliers against the force of a splaying spring (7) and the ends of which remote from the movable main contact members (3a, 3b) are associated with the one contact members (13, 16) of the preliminary contact system, while the other contact members (14, 15) of the preliminary contact system are arranged by way of a common contact carrier (30) in such a manner between the crossed levers (11, 11') at the countercontact member (4), that they are made contact with by the contact members (13, 16) associated with the crossed levers (11, 11'), when the switching-on of the main contact members (2) has the effect that the contact collectors (6a, 6b) and thereby the crossed levers (11, 11') pivot one towards the other, and with e) a division of the preliminary contact system into a first contact equipment (15, 16) and a second contact equipment (13, 14) connected in parallel with the first, wherein the first contact equipment (15, 16) opens shortly before the second contact equipment (13, 14) during the switching-off movement of the isolating switch and closes shortly before second contact equipment (13, 14) during the switching-on movement and wherein precautions are taken, which have the effect that the contact member (14), which is arranged at the countercontact member (4), of the second contact equipment (13, 14) is released by the contact member (13) associated with the crossed levers (11, 11') during a predetermined contact stroke only after the charging of an energy store (19) and snaps back into the switched-off setting.

Description

"Hochspannungstrennachalter, insbesondere Einsäulen-Trennschalter, zum Schalten kommutierender Ströme""High-voltage disconnector, especially single-column disconnector, for switching commutating currents"

Die Erfindung betrifft einen Hochspannungstrennschalter gemäß den Merkmalen des Oberbegriffes des Anspruchs 1.The invention relates to a high-voltage disconnector according to the features of the preamble of claim 1.

Aus der DE-OS 28 09 499 ist es bereits bekannt, parallel zu dem Hauptkontakt eines Hochspannungstrenners einen Schaltkontakt anzuordnen, der beim Einschalten vor und beim Ausschalten nach dem Hauptkontakt schließt bzw. öffnet, so daß das Schliessen oder Öffnen des Hauptkontaktes stromlos erfolgt, auch wenn über den Trenner im Augenblick des Schaltens ein gewisser Strom fließt. Dieser Schaltkontakt kann besondere Vorkehrungen haben, um seine Lebensdauer und das Schaltvermögen zu vergrößern.From DE-OS 28 09 499 it is already known to arrange a switching contact parallel to the main contact of a high-voltage isolator, which closes or opens when switched on before and when switched off after the main contact, so that the closing or opening of the main contact takes place without current, also if a certain current flows through the isolator at the moment of switching. This switch contact can have special precautions to increase its service life and switching capacity.

Da Hochspannungstrenner allgemein Bewegungen mit relativ kleinen Geschwindigkeiten ausführen, ist es schwierig bzw. bei gesteigerten Ansprüchen an die Lebensdauer und bei größeren Werten für den zu schaltenden Strom und für die Spannung unmöglich, diese Forderungen mit den bisher bekannten Einrichtungen zu erfüllen.Since high-voltage isolators generally perform movements at relatively low speeds, it is difficult or with increased demands on the service life and larger values for the current to be switched and for the voltage, it is impossible to meet these requirements with the previously known devices.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Einrichtung an Hochspannungstrennschaltern der eingangs erwähnten Art anzugeben, die beim Schalten kommutierender Ströme, Abbrandspuren an den Hauptkontakten mit Sicherheit vermeidet.The invention is therefore based on the object of specifying a device on high-voltage disconnectors of the type mentioned at the outset which, when switching commutating currents, reliably avoids burnout marks on the main contacts.

Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst. Mit einem Trennschalter nach der Erfindung wird erreicht, daß - unabhängig von der Geschwindigkeit der Hauptkontakte - beim Ausschalten die Kontaktstücke des Kontaktsystems mit vorgegebener Geschwindigkeit trennen, wodurch für die Unterbrechung des Stromes und für den Kontaktabbrand optimale Bedingungen eingestellt werden.This object is achieved by the features specified in the characterizing part of claim 1. With a circuit breaker according to the invention it is achieved that - regardless of the speed of the main contacts - when switching off, disconnect the contact pieces of the contact system at a predetermined speed, whereby optimal conditions are set for the interruption of the current and for the contact erosion.

Das zweite Problem, das bei der Einschaltung des Trenners durch die langsame (''schleichende'') Einschaltung der Kontakte der zweiten Kontakteinrichtung entsteht, läßt sich durch den Anbau einer weiteren, parallel zu dieser Kontakteinrichtung angeordneten Kontakteinrichtung lösen, die zeitlich kurz vor dem Berühren der Kontakte der zweiten Schalteinrichtung den Stromkreis einschaltet und so von der Gefahr der Verschmorungen entlastet. Diese erste Kontakteinrichtung ist so gestaltet, daß sie, auch bei langsamer Bewegung, schnell vom Zustand der ersten Berührung mit der Kontaktlast Null in den Zustand der vollen Stromtragfähigkeit mit entsprechender Kontaktlast kommt.The second problem, which arises when the isolator is switched on due to the slow (`` creeping '') switching on of the contacts of the second contact device, can be solved by installing a further contact device arranged parallel to this contact device, which is just before touching of the contacts of the second switching device switches on the circuit and thus relieves of the risk of scorching. This first contact device is designed in such a way that, even with slow movement, it quickly comes from the state of the first contact with the contact load zero to the state of full current carrying capacity with a corresponding contact load.

Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further developments of the invention are characterized in the subclaims.

In der Zeichnung ist ein Ausführungsbeispiel schematisch dargestellt.In the drawing, an embodiment is shown schematically.

Es zeigen

  • Figur 1 einen bekannten Scheren- oder Pantographentrenner,
  • Figur 2 eine bereits vorgeschlagene, den Hauptkontakten parallel zugeordnete Schalteinrichtung mit Vor- und Schaltkontaktstücken und
  • Figur 3 ein Kontaktsystem nach der Erfindung.
Show it
  • FIG. 1 shows a known scissor or pantograph separator,
  • Figure 2 is an already proposed switching device associated with the main contacts in parallel with upstream and switching contact pieces and
  • Figure 3 shows a contact system according to the invention.

Bei dem Scheren- oder Pantographentrenner nach den Figuren 1 und 2, der im wesentlichen aus einer Porzellansäule 1 und einer in vertikaler Richtung bewegbaren Schere 2 mit den Hauptkontaktstücken 3a, 3b besteht, sind an dem oberen, am Leiterseil 5 fest montierten Gegenkontakt 4 zwei schwenkbare Kontaktbügel 6a, 6b befestigt, die bei geöffnetem Trenner durch die Kraft einer Feder 7 in einer gespreizten Position in gewissem Abstand von dem Gegenkontakt 4 gehalten werden.In the scissors or pantograph separator according to Figures 1 and 2, which consists essentially of a porcelain column 1 and a scissors 2 movable in the vertical direction with the main contact pieces 3a, 3b, are two pivotable on the upper, fixed to the conductor cable 5 counter contact 4 Contact bracket 6a, 6b attached, which are held in a spread position at a certain distance from the counter contact 4 by the force of a spring 7 when the disconnector is open.

Beim Einschalten werden entgegen der Federkraft in der unter einer Haube 9 untergebrachten Schalteinrichtung die Schaltkontakte 8a, 8b, die einfach oder doppelt vorhanden sein können, geschlossen, bevor die Hauptkontakte 3a, 3b und 4 des Trennschalters sich berühren. Beim Ausschalten sorgt die Feder über ein Hebelsystem 11 mit einem isolierten Drehlager 10 dafür, daß die Kontaktbügel dem sich bewegenden Hauptkontakt 3a, 3b der Schere folgen und hierdurch die zeitlich nach der Kantakttrennung der Hauptkontakte liegende Kontakttrennung in der Schalteinrichtung mit der anschließenden Lichtbogenlöschung im Löschrohr 12 herbeiführen.When switching on, the switching contacts 8a, 8b, which can be single or double, are closed against the spring force in the switching device accommodated under a hood 9 before the main contacts 3a, 3b and 4 of the disconnector touch. When the switch is switched off, the spring uses a lever system 11 with an insulated pivot bearing 10 to ensure that the contact brackets follow the moving main contact 3a, 3b of the scissors and thereby the contact separation in the switching device with the subsequent arc extinguishing in the extinguishing tube 12 bring about.

In Figur 3 ist eine Schalteinrichtung dargestellt, bei der die nicht dargestellten Hauptkontakte in der eingeschalteten Stellung des Trenners den Strom führen, und die ebenfalls geschlossenen Kontakte einer zweiten Kontakteinrichtung 13, 14 sowie einer ersten Kontakteinrichtung 15, 16 in elektrischer Hinsicht parallel zu den Hauptkantakten liegen. Beim Öffnen des Trenners, nachdem die erwähnten Hauptkontakte sich getrennt haben, verlager sich der Strom zunächst auf die noch geschlossene erste Kontakteinrichtung mit den elastischen Kontaktfingern 15 und dem beweglichen Kontaktstück 16. Nach einem kurzen Hub trennt die erste Kontakteinrichtung ebenfalls (Fig. 3a) und der auszuschaltende Strom fließt jetzt nur noch über die Kontaktstücke 13, 14 der zweiten Kontakteinrichtung, nämlich über den mit dem Kontaktstück 16 fest verbundenen Abreißstift 13 und den im Gehäuse 17 axial beweglich gelagerten Kontakt 14. Bei weiter fortschreitender Ausschaltbewegung wird wegen der formschlüssigen Verklammerung dieser beiden Kontaktstücke 13 und 14 über den mit dem Kontakt 14 fest verbundenen Federteller 18 die Rückholfeder 19 gespannt, bis beim Überschreiten des Haltevermögens der Verklammerung die Kontaktstücke 13, 14 sich trennen und der Kontakt 14 schnell in seine Ausgangsposition am Anschlag 20 zurückeilt (Fig. 3b). Hierbei entsteht zwischen dem Kontakt 14 und dem AbreiBstift 13 ein Schaltlichtbogen. Dieser Lichtbogen brennt innerhalb eines Löschrohres 23 zwischen Löschbacken 24 aus gasabgebendem Isolierstoff, wodurch der Lichtbogen innerhalb weniger Millisekunden gelöscht und damit der Stromkreis endgültig aufgetrennt wird.FIG. 3 shows a switching device in which the main contacts (not shown) conduct the current when the disconnector is in the switched on position, and the likewise closed contacts of a second contact device 13, 14 and a first contact device 15, 16 are electrically parallel to the main contact contacts . When the disconnector is opened after the main contacts mentioned have separated, the current initially shifts to the still closed first contact device with the elastic contact fingers 15 and the movable contact piece 16. After a short stroke, the first contact device also disconnects (FIG. 3a) and the current to be switched off now only flows via the contact pieces 13, 14 of the second contact device, namely via the tear-off pin 13 firmly connected to the contact piece 16 and that in the housing 17th axially movably mounted contact 14. As the switch-off movement progresses, the return spring 19 is tensioned because of the positive clamping of these two contact pieces 13 and 14 via the spring plate 18 firmly connected to the contact 14, until the contact pieces 13, 14 separate when the clamping capacity is exceeded and the contact 14 quickly rushes back to its starting position at the stop 20 (FIG. 3b). This creates a switching arc between the contact 14 and the AbreiBstift 13. This arc burns within an extinguishing tube 23 between extinguishing jaws 24 made of gas-emitting insulating material, as a result of which the arc is extinguished within a few milliseconds and the circuit is thus finally opened.

Beim Einschalten des Trenners übernimmt das Schließen des Stromkreises die erste Kontakteinrichtung, nachdem im Zuge der Eihschaltbewegung die Kontaktfinger 15 über eine konische Auflaufschräge 25 aus Isolierstoff hinweggleiten, wobei sie die für die erforderliche Kontaktlast nötige Vorspannung erhalten, und schließlich in Berührung mit der Kontaktbahn des Kontaktstückes 16 gelangen (Fig. 3). Erst nach dieser Kontaktgabe kommt der im Inneren des Löschrohres 23 liegende AbreiBstift 13 mit dem Kontakt 14 in Berührung, so daß hierbei keine Verschweißung auftreten kann.When the disconnector is switched on, the circuit is closed by the first contact device, after the contact fingers 15 slide over a conical run-up slope 25 made of insulating material in the course of the row switching movement, whereby they receive the pretension required for the required contact load, and finally in contact with the contact path of the contact piece 16 arrive (Fig. 3). Only after this contact has been made does the abrasion pin 13 lying inside the extinguishing tube 23 come into contact with the contact 14, so that no welding can occur here.

Für die Auflaufschräge 25 kann ein elektrisch hochwertiger Kunststoff mit niedrigem Reibungsbeiwert wie z.B. ein Acetalharz verwendet werden. Als Kontaktfläche für das Kontaktstück 16 kann eine Kupferlegierung mit guter Abbrandfestigkeit eingesetzt werden.An electrically high-quality plastic with a low coefficient of friction such as e.g. an acetal resin can be used. A copper alloy with good erosion resistance can be used as the contact surface for the contact piece 16.

Claims (8)

1. Hochspannungstrennschalter, insbesondere Einsäulen-Trennschalter, zum Schalten kommutierender Ströme, mit an den Enden der Scherenarme angeordneten, beweglichen Hauptkontaktatücken und einem an der Hochspannungsleitung befestigten Gegenkontaktstück, welchem Verkuntaktstücke zugeordnet sind, die beim Einschalten vor den Hauptkontaktatücken schließen und beim Ausschalten nach den Hauptkontaktatücken öffnen, dadurch gekennzeichnet, daß die Vorkantaktstücke aus einem Kontaktsystem bestehen, welches eine erste Kontakteinrichtung (15, 16) und eine zweite parallel geschaltete Kontakteinrichtung (13, 14) aufweist, deren Kontaktstück (14) bei der Endabschaltung unter Aufladung eines Energiespeichers (19) nach einem vorbestimmten Hub freigegeben wird und in die Ausschaltstellung zurückschnellt.1.High-voltage isolating switch, in particular single-column isolating switch, for switching commutating currents, with movable main contact pieces arranged at the ends of the scissor arms and a mating contact piece attached to the high-voltage line, to which connecting pieces are assigned, which close before the main contact pieces when switched on and after the main contact pieces when switched off Open, characterized in that the pre-contact pieces consist of a contact system which has a first contact device (15, 16) and a second contact device (13, 14) connected in parallel, the contact piece (14) of which is switched off when an energy store (19) is charged. is released after a predetermined stroke and flips back to the off position. 2. Hochspannungstrennachalter nach Anspruch 1, dadurch gekennzeichnet, daß die erste Kontakteinrichtung (15, 16) bei der Ausschaltbewegung des Trennschalters kurzzeitig vor der zweiten Kontakteinrichtung (13, 14) öffnet und bei der Einschaltbewegung vor der zweiten Kontakteinrichtung schließt.2. High voltage isolating switch according to claim 1, characterized in that the first contact device (15, 16) opens briefly before the second contact device (13, 14) when the disconnector is switched off and closes before the second contact device during the switch-on movement. 3. Hochspannungstrennschalter nach Anspruch 1, dadurch gekennzeichnet, daß die Mitnahme des festen Kontaktstückes (14) der zweiten Kontakteinrichtung (13, 14) durch eine formschlüssige Verklammerung mit dem beweglichen Kontaktstück (13) erfolgt.3. High-voltage isolating switch according to claim 1, characterized in that the entrainment of the fixed contact piece (14) of the second contact device (13, 14) takes place by means of positive locking with the movable contact piece (13). 4. Hochspannungstrennschalter nach Anspruch 1, dadurch gekennzeichnet, daß als Energiespeicher für das feste Kontaktstück (14) eine zwischen einem Federsteller (18) und dem Gehäuse (17) der zweiten Kontakteinrichtung angeordneten Feder (19) vorgesehen ist.4. High-voltage disconnector according to claim 1, characterized in that a spring (19) arranged between a spring actuator (18) and the housing (17) of the second contact device is provided as the energy store for the fixed contact piece (14). 5. Hochspannungstrennschalter nach Anspruch 1, dadurch gekennzeichnet, daß das bewegliche Kontaktstück (13) der zweiten Kontakteinrichtung in einen rohrförmigen unter der Einwirkung eines Lichtbogens gasabgebenden Körper (24) geführt ist.5. High-voltage isolating switch according to claim 1, characterized in that the movable contact piece (13) of the second contact device is guided into a tubular body (24) which emits gas under the action of an arc. 6. Hochspannungstrennschalter nach Anspruch 2, dadurch gekennzeichnet, daß das feste Kontaktstück (15) der ersten Kontakteinrichtung aus einem oder mehreren elastischen Kontaktfingern besteht, und das bewegliche Kontaktstück (16) eine ebene metallische Kontaktfläche aufweist, der ein konisches Isolierstoffstück (25) vorgelagert ist, über die beim Einschalten die elastischen Kontaktfinger (15) auf die metallische Fläche gleiten.6. High-voltage isolating switch according to claim 2, characterized in that the fixed contact piece (15) of the first contact device consists of one or more elastic contact fingers, and the movable contact piece (16) has a flat metallic contact surface, which is preceded by a conical insulating material piece (25) , over which the elastic contact fingers (15) slide onto the metallic surface when switched on. 7. Hochspannungstrennschalter nach Anspruch 6, dadurch gekennzeichnet, daß das konische Isolierstoffstück aus Acetalharz besteht.7. High-voltage disconnector according to claim 6, characterized in that the conical piece of insulating material consists of acetal resin. B. Hochspannungstrennschalter nach Anspruch 6, dadurch gekennzeichnet, daß die Kontaktflächen des beweglichen Kontaktstückes (16) der ersten Kontakteinrichtung aus einer Kupferlegierung mit guter Abbrandfestigkeit bestehen.B. high-voltage disconnector according to claim 6, characterized in that the contact surfaces of the movable contact piece (16) of the first contact device consist of a copper alloy with good erosion resistance.
EP84109850A 1983-08-27 1984-08-18 High-voltage isolating switch, in particular a pantograph isolating switch able to make or break currents Expired EP0135789B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84109850T ATE44422T1 (en) 1983-08-27 1984-08-18 HIGH-VOLTAGE DISCONNECTING SWITCHES, IN PARTICULAR SINGLE-POLE DISCONNECTING SWITCHES, FOR SWITCHING COMMUTING CURRENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3331024A DE3331024A1 (en) 1983-08-27 1983-08-27 HIGH VOLTAGE DISCONNECTOR, ESPECIALLY SINGLE-COLUMN DISCONNECTOR, FOR SWITCHING COMMUTING CURRENTS
DE3331024 1983-08-27

Publications (3)

Publication Number Publication Date
EP0135789A2 true EP0135789A2 (en) 1985-04-03
EP0135789A3 EP0135789A3 (en) 1986-10-29
EP0135789B1 EP0135789B1 (en) 1989-07-05

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EP84109850A Expired EP0135789B1 (en) 1983-08-27 1984-08-18 High-voltage isolating switch, in particular a pantograph isolating switch able to make or break currents

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EP (1) EP0135789B1 (en)
AT (1) ATE44422T1 (en)
DE (2) DE3331024A1 (en)

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Publication number Priority date Publication date Assignee Title
EP0283949A2 (en) * 1987-03-24 1988-09-28 Asea Brown Boveri Aktiengesellschaft Multiposition load break switch for high and middle tension installations
GB2254488A (en) * 1991-03-29 1992-10-07 Dauphinoise Const Elect Mec High voltage switch

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DE1240158B (en) * 1960-12-10 1967-05-11 Sachsenwerk Licht & Kraft Ag Switch disconnectors
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DE2809499A1 (en) * 1978-03-06 1979-09-13 Licentia Gmbh HV single column circuit breaker - has on one contact resilient advance contacts, making before main contacts and breaking after them
EP0062603A1 (en) * 1981-03-20 1982-10-13 Siemens Aktiengesellschaft On-load isolating switch with a pivoting switch arm and with extinguishing means

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DE1941383C3 (en) * 1969-08-14 1974-08-22 Felten & Guilleaume Schaltanlagen Gmbh, 4150 Krefeld Switch-disconnector with gas-emitting pipe extinguishing chamber
DE2907574C2 (en) * 1979-02-27 1984-05-17 Concordia Sprecher-Schaltgeräte GmbH, 7024 Filderstadt Extinguishing chamber
DE3122442A1 (en) * 1981-06-02 1982-12-23 Siemens AG, 1000 Berlin und 8000 München DISCONNECTOR FOR HIGH VOLTAGE SYSTEMS

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Publication number Priority date Publication date Assignee Title
DE946638C (en) * 1951-04-06 1956-08-02 Sachsenwerk Licht & Kraft Ag Slide disconnector for additional load disconnection
DE1240973B (en) * 1958-11-15 1967-05-24 Sachsenwerk Licht & Kraft Ag Switch disconnectors
DE1240158B (en) * 1960-12-10 1967-05-11 Sachsenwerk Licht & Kraft Ag Switch disconnectors
DE2809499A1 (en) * 1978-03-06 1979-09-13 Licentia Gmbh HV single column circuit breaker - has on one contact resilient advance contacts, making before main contacts and breaking after them
EP0062603A1 (en) * 1981-03-20 1982-10-13 Siemens Aktiengesellschaft On-load isolating switch with a pivoting switch arm and with extinguishing means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0283949A2 (en) * 1987-03-24 1988-09-28 Asea Brown Boveri Aktiengesellschaft Multiposition load break switch for high and middle tension installations
EP0283949A3 (en) * 1987-03-24 1990-08-29 Asea Brown Boveri Aktiengesellschaft Multiposition load break switch for high and middle tension installations
GB2254488A (en) * 1991-03-29 1992-10-07 Dauphinoise Const Elect Mec High voltage switch
GB2254488B (en) * 1991-03-29 1994-11-30 Dauphinoise Const Elect Mec High voltage switch adapted to establish and cut off the bar transfer currents in a looped circuit

Also Published As

Publication number Publication date
DE3331024A1 (en) 1985-03-14
EP0135789A3 (en) 1986-10-29
EP0135789B1 (en) 1989-07-05
ATE44422T1 (en) 1989-07-15
DE3478883D1 (en) 1989-08-10

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